Morning pics and test. Filter at 19-20 psi. Backwashed and added 1/2 cup of DE. Pool was noticably clearer than last night. Can clearly make out the Polaris and finally for the first time see the bottom drain from outside the water in the deep end. I think the small amount of DE I added yesterday after swimming may be helping clear the water faster than just the sand filter by itself, or it could possibly be that turning off the booster pump allows things to filter better in the sand filter, or it could just be the chlorine working. Too many variables at this stage to know for sure.
FC-14.5
Added 2 quarts of LC